Automatic number identification

Edit links
Source: Wikipedia, the free encyclopedia.

Automatic number identification (ANI)

long distance service in the Bell System,[3][4]
eliminating the need for telephone operators to manually record calls.

Modern ANI has two components: information digits, which identify the class of service,[5] and the calling party billing telephone number.

The term is also used to describe the functions of two-way radio selective calling that identify the transmitting user.

ANI is distinct from newer caller ID services, such as call display, which are solely for informing a subscriber.

Toll-free telephone numbers

Modern

area codes
such as +1-800, 888, 877, 866, 855, 844, and 833 with 822 reserved for future toll free use (United States and Canada), 1800 (Australia) or 0800 and 0808 (United Kingdom).

Privacy

ANI is conceptually and technically different from caller ID service.[1] A caller's telephone number and line type are captured by ANI service even if caller ID blocking is activated. The destination telephone company switching office can relay the originating telephone number to ANI delivery services subscribers. Toll-free subscribers and large companies normally have access to ANI, either instantly via installed equipment, or from a monthly billing statement. Residential subscribers can obtain access to ANI information through third party companies that charge for the service.[6]

ANI is generally not transmitted when a call is operator assisted; only the area code of the last switch to route the call is sent.[citation needed]

Automatic number announcement

ANI is used to provide automatic number announcement, a test facility of a central office for telephone installation technicians. The service, which is not advertised to the public, allows an installer to identify a line by dialing a telephone number. Such numbers are typically assigned in a a range reserved for testing purposes (such as 958-xxxx in much of North America).

DNIS

call center
and provide unique service. DNIS can also be used to identify other call routing information. For example, toll-free service can be configured to send a specific DNIS number that is assigned to callers from geographic regions based on city, area code, state, or country.

Similar services

  • Europe:
    Calling Line Identification
    (CLI)
  • Caller Line Identification
    (CLID)
  • Australia: Automatic number identification (ANI) 1800801920 or 12722123 (Telstra line only, local call cost)

References

  1. ^ a b Anthony Ramirez (April 4, 1992). "Caller ID: Consumer's Friend or Foe?". The New York Times. Retrieved September 21, 2022.
  2. ^ "The Pizza Version of Dialing '911'". The New York Times. September 9, 1991.
  3. ^ US Patent 2,265,844: Calling Line Identification Circuit
  4. ^ US Patent 2,300,829: Calling Line Identification System
  5. North American Numbering Plan Administration. 2003. Archived
    from the original on June 18, 2007. Retrieved July 6, 2007.
  6. ^ Fallon, Sean (February 17, 2009). "TrapCall Displays Blocked Numbers on Your Caller ID". Gizmodo. Retrieved June 26, 2021.
  7. ISBN 978-81-269-0752-6
    .
  8. ^ >Waite, Andrew. A Practical Guide to Call Center Technology. p315. >Waite, Archived 2014-06-28 at the Wayback Machine
Retrieved from "https://en.wikipedia.org/w/index.php?title=Automatic_number_identification&oldid=1220018174"